The Duplex IQI is used in many X-ray applications. It is especially made for digital X-ray applications in order to evaluate image unsharpness (film and digital images) and basic spatial resolution in digital images according to EN 13068 (Radioscopy), EN 14784 and ISO 13671 (CR – Computed Radiography with imaging plates), ISO 17636-2 (digital radiography of welds – flat panel detectors) or ASTM E 2597 (characterization of digital detector arrays).
- The IQI consists of 13 wire pairs from 1D with a wire Ø of 0.80mm to 13D with a wire Ø of 0.050mm.
- Wires 1D – 3D are made of tungsten and wires 4D to 13D are made of platinum.
- The wires of platinum and tungsten are exactly spaced to correspond to the diameter of each pair. The degree of unsharpness is indicated by the number of wire pairs that can be seen. As unsharpness increases, the wires merge to form a single image.
- The wires are cast in a transparent, resistant and dimensional stable plastic material.
- Each IQI is cast with a standard designation and a unique serial number, which is shown on each image.
Link: Duplex IQI